Patent application number | Description | Published |
20080203163 | Manual noncontact IC card reader - A technology that is applicable generally to manual noncontact card readers regardless of whether they are of insertion or swipe type, and realizes stable communication even with antennas of small size is provided. A pair of loop antennas | 08-28-2008 |
20100031154 | RADIO COMMUNICATION SYSTEM, RADIO EQUIPMENT, AND SERVER - A plurality of servers each transmit data of an initial screen to be displayed on a display screen of radio equipment at a predetermined time interval. The radio equipment is in a reception waiting mode until it is connected to any one of the servers, and is performing channel scanning. Once the data of the initial screen transmitted from any one of the servers is received by the radio equipment, the radio equipment displays the initial screen on the display screen based on the received data. When an operation of a connection instruction is performed on the initial screen, the radio equipment is connected to the server corresponding to the initial screen. | 02-04-2010 |
20130162496 | MULTI-ANTENNA DEVICE AND COMMUNICATION APPARATUS - A multi-antenna device includes a feeding element and a passive element. The feeding element has first and second antenna elements. The passive element is disposed between the first and second antenna elements. The passive element has a first portion that is grounded at one end, a second portion that is grounded at one end and a third portion that is grounded at one end via a serially connected member with inductance. The third portion is connected at the other end to the other ends of the first and second portions. | 06-27-2013 |
20140248836 | COMMUNICATION DEVICE AND FEEDER DEVICE - A communication device includes a sensor, an antenna, and a notification component. The sensor is configured to detect magnetic field strength. The antenna is configured to generate a magnetic field. The antenna is further configured to communicate with a wireless device that is configured to generate a magnetic field during communication. The notification component is configured to notify a positional offset between the antenna and the wireless device based on output signal indicative of the magnetic field strength. The sensor is arranged with respect to the antenna such that an effect of the magnetic field generated by the antenna on the output signal is suppressed. | 09-04-2014 |
20140300197 | AMPLITUDE MODULATION CIRCUIT AND NON-CONTACT POWER FEEDING DEVICE - An amplitude modulation circuit includes a resonance circuit powered by an oscillator and comprising a power transmission coil with a first coil portion, a second coil portion, a modulation coil, and a resonance condenser; and a switch that switches between a state where the first coil portion and the second coil portion are connected in series and a state where the first coil portion and the modulation coil are connected in series according to a level switching timing of transmission data and a timing when a coil current in the resonance circuit becomes zero. The combined inductance of the first coil portion and the second coil portion connected in series and a combined inductance of the first coil portion and the modulation coil connected in series are equal. | 10-09-2014 |
20140300198 | NON-CONTACT COMMUNICATION COIL, NON-CONTACT POWER FEEDING DEVICE, AND NON-CONTACT POWER RECEIVING DEVICE - A non-contact communication coil for a non-contact power feeding device comprises a power transmission coil, a power receiving coil, and a resonance coil, and the non-contact communication coil includes a first receiver and a second receiver connected in series with the first receiver. The non-contact communication coil generates induction voltages in mutually opposing directions in the first receiver and the second receiver when current passes through at least one of the power transmission coil and the power receiving coil. | 10-09-2014 |
20140300315 | NON-CONTACT POWER FEEDER AND NON-CONTACT POWER FEEDING METHOD - A non-contact power feeder includes a plurality of power transmission coils disposed along a disposition surface, wherein a power receiving device that houses a power reception coil is disposed on the disposition surface, and a controller that determines a first traveling wave power, from among a plurality of traveling wave powers, that feeds the power transmission coil corresponding to the power receiving device based on a state of change of at least one of: actual transmitted power, from the plurality of traveling wave powers, transmitted from the plurality of power transmission coils to the power reception coil when power transmitted to the plurality of power transmission coils is changed, and reactive power, from the plurality of traveling wave powers, not transmitted from the power transmission coil to the power reception coil when the power transmitted to the plurality of power transmission coils is changed. | 10-09-2014 |
20150115731 | Contactless Power Feeding Apparatus and Contactless Power Feeding System - A contactless power feeding apparatus includes a power source portion, a power feeding coil, and a power feeding apparatus side control portion, and the power feeding apparatus side control portion is configured to perform feeding voltage control in order to control the feeding voltage value of the power source portion on the basis of a coupling coefficient such that power transmission efficiency to a power receiving apparatus including a power receiving coil is in the vicinity of a maximum. | 04-30-2015 |
20150200549 | Power Transfer Unit, Method for Power Transfer, and Receiver - This power transfer unit includes a power supply portion and a control portion, and the control portion acquires proper voltage ranges of a plurality of receivers and sets a supply voltage value in a common range among the proper voltage ranges. | 07-16-2015 |
20150372494 | WIRELESS POWER SUPPLY DEVICE - A wireless power supply device includes a resonant circuit including a power supply coil and a resonant capacitor. The wireless power supply device also includes a controller that changes a waveform of power in the resonant circuit and causes a phase difference between a phase of a drive signal that drives the resonant circuit and a phase of current flowing through the power supply coil to be substantially 0. | 12-24-2015 |
Patent application number | Description | Published |
20100188537 | SOLID-STATE IMAGING DEVICE - Light-splitting elements are arranged in at least two columns and two rows to form two pairs | 07-29-2010 |
20130299684 | LIGHT-TRAPPING SHEET AND ROD, AND LIGHT-RECEIVING DEVICE AND LIGHT-EMITTING DEVICE USING THE SAME - A light-trapping sheet of the present disclosure includes: a light-transmitting sheet; and light-coupling structures arranged in an inner portion of the light-transmitting sheet. The light-coupling structure includes first, second and third light-transmitting layers. A refractive index of the first and second light-transmitting layers is smaller than that of the light-transmitting sheet; and a refractive index of the third light-transmitting layer is larger than those of the first and second light-transmitting layers. The third light-transmitting layer has a diffraction grating parallel to the surfaces of the light-transmitting sheet. The light-trapping sheet further includes a transparent cover sheet opposing at least one of the surfaces of the light-transmitting sheet with a gap interposed therebetween. | 11-14-2013 |
20130299685 | LIGHT-RECEIVING DEVICE HAVING LIGHT-TRAPPING SHEET - A light-receiving device of the present disclosure includes a light-trapping sheet, and a photoelectric conversion section optically coupled thereto. The light-trapping sheet includes: a light-transmitting sheet; and a plurality of light-coupling structures arranged in an inner portion of the light-transmitting sheet. The light-coupling structure includes first, second and third light-transmitting layers. A refractive index of the first and second light-transmitting layers is smaller than that of the light-transmitting sheet; and a refractive index of the third light-transmitting layer is larger than those of the first and second light-transmitting layers. The third light-transmitting layer has a diffraction grating parallel to the light-transmitting sheet. At least a part of the photoelectric conversion section is located along an outer edge of at least one of the surfaces of the light-transmitting sheet. | 11-14-2013 |
20130306844 | LIGHT-TRAPPING SHEET, AND LIGHT-RECEIVING DEVICE AND LIGHT-EMITTING DEVICE USING THE SAME - A light-trapping sheet of the present disclosure includes: a plurality of light-transmitting sheets each having first and second principal surfaces; and a plurality of light-coupling structures arranged in an inner portion of each of the plurality of light-transmitting sheets at a first and second distance from the first and second principal surfaces, respectively. Each of the plurality of light-coupling structures includes a first light-transmitting layer, a second light-transmitting layer, and a third light-transmitting layer sandwiched therebetween. A refractive index of the first and second light-transmitting layers is smaller than a refractive index of the light-transmitting sheet; and a refractive index of the third light-transmitting layer is larger than the refractive index of the first and second light-transmitting layers. The third light-transmitting layer has a diffraction grating parallel to the first and second principal surfaces of the light-transmitting sheet. | 11-21-2013 |
20140027748 | ORGANIC ELECTROLUMINESCENCE DEVICE AND METHOD OF FABRICATING THE SAME - An organic EL device includes: a reflective electrode; a transparent electrode opposite the reflective electrode; an organic layer including a light-emitting layer between the reflective electrode and transparent electrode; and a low refractive index layer between the reflective electrode and light-emitting layer. The low refractive index layer has a function of transporting/injecting electrons/holes, and has a lower refractive index than the light-emitting layer. Distance between the surface of the reflective electrode and a central light-emitting position of the light-emitting layer is 300 nm or less. Furthermore, Δn×d/λ≦−0.009 and Δn×d/λ≦−0.02 are satisfied when the reflective electrode comprises Al and Ag, respectively, where: λ denotes the central light-emitting wavelength of light generated in the light-emitting layer; Δn denotes the refractive index difference between the low refractive index layer and the light-emitting layer, with the refractive index of the light-emitting layer as reference; and d denotes the thickness of the low refractive index layer. | 01-30-2014 |
20140050441 | LIGHT-TRAPPING SHEET AND ROD, AND LIGHT-RECEIVING DEVICE AND LIGHT-EMITTING DEVICE USING THE SAME - A light-trapping sheet includes: a light-transmitting sheet having first and second principal surfaces; and a plurality of light-coupling structures arranged in an inner portion of the light-transmitting sheet, wherein: each of the plurality of light-coupling structures includes a first light-transmitting layer, a second light-transmitting layer, and a third light-transmitting layer sandwiched therebetween; a refractive index of the first and second light-transmitting layers is smaller than a refractive index of the light-transmitting sheet; a refractive index of the third light-transmitting layer is larger than the refractive index of the first and second light-transmitting layers; and the third light-transmitting layer has a two-dimensional diffraction grating parallel to the first and second principal surfaces of the light-transmitting sheet. | 02-20-2014 |
20140124650 | IMAGING DEVICE - The imaging device disclosed herein includes: a plurality of photodetection sections | 05-08-2014 |
20140263968 | COLOR IMAGING DEVICE - An imaging apparatus | 09-18-2014 |
Patent application number | Description | Published |
20110080737 | SHEET, LIGHT EMITTING DEVICE, AND METHOD FOR PRODUCING THE SHEET - A transparent sheet usable in the state where one of surfaces thereof is adjacent to a light emitting body, wherein the other surface of the sheet is divided into a plurality of tiny areas δ having such a size that a maximum circle among circles inscribed thereto has a diameter of 0.5 μm or greater and 3 μm or less with no gap; the tiny areas δ include a plurality of tiny areas δ | 04-07-2011 |
20110080738 | OPTICAL SHEET, LIGHT-EMITTING DEVICE, AND METHOD FOR MANUFACTURING OPTICAL SHEET - A surface of a transparent substrate | 04-07-2011 |
20110090697 | SHEET AND LIGHT EMITTING DEVICE - A light emitting device | 04-21-2011 |
20110133624 | SHEET AND LIGHT EMITTING APPARATUS - A sheet of the present invention is a sheet which is to be used such that light from a light emitting body impinges on one of surfaces of the sheet and outgoes from the other surface. The other surface of the sheet includes a plurality of minute regions | 06-09-2011 |
20110192962 | IMAGING PHOTODETECTION DEVICE - An imaging photodetection device ( | 08-11-2011 |
20120063145 | SHEET AND LIGHT-EMITTING DEVICE - A transparent sheet for use with a light emitting body with one of surfaces of the transparent sheet being adjacent to the light emitting body, wherein the other surface of the sheet is divided into a plurality of minute regions δ, a largest inscribed circle of the minute regions δ having a diameter from 0.2 μm to 1.5 μm, each of the minute regions δ being adjoined by and surrounded by two or more other ones of the plurality of minute regions δ, the plurality of minute regions δ include a plurality of minute regions δ | 03-15-2012 |